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Improved generic constraint const conversion handling

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This commit is contained in:
Brian Fiete 2022-05-06 12:49:57 -07:00
parent c750ed076c
commit e5c4321440
4 changed files with 35 additions and 3 deletions
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12
IDEHelper/Compiler/BfIRBuilder.cpp
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@ -461,6 +461,18 @@ int BfIRConstHolder::IsZero(BfIRValue value)
return -1;
}
bool BfIRConstHolder::IsConstValue(BfIRValue value)
{
auto constant = GetConstant(value);
if (constant == NULL)
return false;
if (constant->mConstType == BfConstType_GlobalVar)
return false;
return true;
}
int BfIRConstHolder::CheckConstEquality(BfIRValue lhs, BfIRValue rhs)
{
auto constLHS = GetConstant(lhs);

1
IDEHelper/Compiler/BfIRBuilder.h
View file

@ -948,6 +948,7 @@ public:
BfConstant* GetConstant(BfIRValue id);
bool TryGetBool(BfIRValue id, bool& boolVal);
int IsZero(BfIRValue val);
bool IsConstValue(BfIRValue val);
int CheckConstEquality(BfIRValue lhs, BfIRValue rhs); // -1 = fail, 0 = false, 1 = true
//void WriteConstant(void* data, BeConstant* constVal);

16
IDEHelper/Compiler/BfModuleTypeUtils.cpp
View file

@ -13510,12 +13510,20 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
// .. and we can convert the constraint's toType to OUR toType then we're good
auto opToVal = genericParam->mExternType;
if (CanCast(BfTypedValue(BfIRValue::sValueless, opToVal), toType, BfCastFlags_NoConversionOperator))
{
if (mBfIRBuilder->IsConstValue(typedVal.mValue))
{
// Retain constness
return mBfIRBuilder->GetUndefConstValue(mBfIRBuilder->MapType(toType));
}
else
return mBfIRBuilder->GetFakeVal();
}
}
}
}
}
}
// Check type generic constraints
if ((mCurTypeInstance != NULL) && (mCurTypeInstance->IsGenericTypeInstance()) && (mCurTypeInstance->IsUnspecializedType()))
@ -13535,6 +13543,13 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
// .. and we can convert the constraint's toType to OUR toType then we're good
auto opToVal = genericParam->mExternType;
if (CanCast(BfTypedValue(BfIRValue::sValueless, opToVal), toType, BfCastFlags_NoConversionOperator))
{
if (mBfIRBuilder->IsConstValue(typedVal.mValue))
{
// Retain constness
return mBfIRBuilder->GetUndefConstValue(mBfIRBuilder->MapType(toType));
}
else
return mBfIRBuilder->GetFakeVal();
}
}
@ -13542,6 +13557,7 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
}
}
}
}
else if (isConstraintCheck)
{
auto result = BfTypedValue(mBfIRBuilder->GetFakeVal(), operatorConstraintReturnType);

3
IDEHelper/Compiler/CeMachine.cpp
View file

@ -4409,6 +4409,9 @@ BfIRValue CeContext::CreateConstant(BfModule* module, uint8* ptr, BfType* bfType
if (bfType->IsTypedPrimitive())
return CreateConstant(module, ptr, bfType->GetUnderlyingType(), outType);
if (bfType->IsGenericParam())
return irBuilder->GetUndefConstValue(irBuilder->MapType(bfType));
if (bfType->IsTypeInstance())
{
auto typeInst = bfType->ToTypeInstance();